Plant Anatomy And Physiology - Study Mode

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[#501] Grafting and . . . . . . . . are horticulture techniques used to join parts from two or more plants, so they appear to grow as a single plant.

(A) layering

(B) cutting

(C) budding

(D) fusion

Correct Answer

(C) budding

[#502] Study the following statements. 1. Excretion of water in the form of liquid droplets from leaves or uninjured plant parts is called gullation. 2. Transpiration help in ascent of sap. 3. Small opening in the leaf meant for gaseous exchange and transpiration is called stomata. Which of the statements given above are correct ?

(A) 1, 2 and 3

(B) 1 and 2

(C) 2 and 3

(D) None of these

Correct Answer

(A) 1, 2 and 3

[#503] A significant event in the history of plant disease was the discovery of Professor T. J. Burrill, working on the

(A) Citrus-canker disease

(B) Late-blight of potato

(C) Fire-blight of pears

(D) Loose-smut of wheat

Correct Answer

(C) Fire-blight of pears

[#504] Which components of light are absorbedby chlorophyll?

(A) Violet and red

(B) Indigo and orange

(C) Blue and red

(D) Violet and yellow

Correct Answer

(C) Blue and red

[#505] The gibberellins are chemically related to a rarge group of naturally occurring compounds called

(A) Isoprene

(B) Serpentine

(C) Terpenoids

(D) Kaurene

Correct Answer

(C) Terpenoids